Can I travel a few days earlier to Pisa/Paris/Madrid or extend my stay there once the EELISA activity is over?

You can extend your stay at your own expense, but you must provide comparative prices (screenshots of flight or train connections) on the day of the activity’s end, and you may need to cover the additional costs if your later return is more expensive. Hotel costs will only be covered for the duration of the EELISA activity, and all further nights must be paid by you. Traveling there a few days ahead is not possible.